Valve-gear



'No. 618,340. Patented lan. 24, |899.

F. FELDHAUS.

VALVE GEAR.

(Application med oct.' 27, 1897 (No Model.)

A4; @Hof/M919 llNrrn' STATES FRED FELDIIAUS, OF MOUNT VERNON, OHIO.

VALVE.E

GEAR.

SPECIFICATION forming part of Letters Patent No. 618,340, dated January 24, 1899.

Application filed October 27,1897. Serial No. 656,542. (No model.)

To all whom, it may concern,.-

Be it known that I, FRED FELDHAUS, a citi- Zen of the United States, residing at Mount Vernon, in the county of Knox and State of Ohio, have invented certain new and useful Improvements in Valve-Gears; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to valve-gear for steam-engines of the character known as Corliss engines.

The object of the invention is to prevent or eliminate the noise due tothe clicking or hammering between the latch or pick-up and the block carried by the valve-lever, and thereby to avoid the necessity of the practice of applying leather to one or both of the contacting surfaces.

The invention consists in the combination of a latch or pick-up, a valve-lever, a block carried by the valve-lever, and a fixed cam arranged in the path of one arm of the latch .or pick-up for preventing contact between the faces of the latch or pick-up and the block when the latch is carried or dropped into position to engage the block.

In the drawings forming a part of this speciication, Figure lis a front elevation of a valvegear of the Corliss type, showing my invention applied thereto. Fig. 2 is a side elevation of the same.

l is the ordinary Corliss valve-gear, which includes a bell-crank A, a camring B, having an arm C, a valve-lever D, a latch or pick-up having arms 5 and 5, and a block 7, carried by the valvelever. To a valve-gear of this character I attach a supplemental 'cam 2, the

cam being arranged in the range of the arm 5 of the latch or pick-up. In practice I attach the cam-piece 2 to a supporting-piece 3,the latter being dovetailed or otherwise connected with the bonnet usual in this class of apparatus, the cam 2 being fastened to the supporting-piece by a stud 4. The latch or pickup, having arms 5 and 5, is mounted and operated by a spring in the usual way and is controlled in part by the tripping-cam G as said cam is oscillated through the medium of the cam-ring from the governor.

IVhen the bell-crank carries the latch into position so that the arm 5 will engage the block '7, the arm 5 rides up thecam 2 and prevents the swinging of arm 5 into violent contact with the block 7, and thus avoids thev clicking or hammering of the surfaces of the respective parts against each other, and thereby eliminates the rattling noise incident to this character of gear without the introduction or use of leather packing.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a Oorliss-engine valve-gear, the combination of a latch or pick-up, a valve-lever, a block carried by said valve-lever, a stationary cam for preventing contact between the latch and the block when the latch is carried to position to engage with the block, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

FRED FELDHAUs.

Witnesses:

I. C. LYNDE, C. K. BANBURSL 

